Flying toy heliplane



July 27, 1948'. J. CHIZMADIA 4 FLYING TOY HELIPLANE Filed Nov. 29, 1946 e INVENTOR. JOHN CHIZMADIA than were heretofore possible with the prior art.

Patented July 27, 1948 UNITED STATES PATENT OFFICE FLYING TOY HELIPLANE' John Chi zmadia, Detroit, Mich. Application November 29, 1946, Serial No. 712,988

4 Claims. (01. 46 7s) This invention relates to flying toy heliplanes and has particular reference to certain new and useful improvements therein whereby the flight of the craft may be more effectively controlled and whereby better flying results may be obtained the devices of The principal object of the invention, therefore, is to provide a new and improved self-propelled flying toy heliplane.

Other and further objects of the invention will be apparent from the following description and claims and will be understood by reference to the accompanying drawings, of which there is one sheet, which, by way of illustration, show a preferred'embodiment and the principles thereof -and-what I now consider to be the best mode in which I have contemplated applying those principles. Other embodiments of the invention embodying the same or equivalent principles may i be used and structural changes may be made as' desired by those skilled in the art without departing from the present invention and the purview of the appended claims. I also contemplate that ofthe several different features of my invention, certain ones thereof may be advantageously employed in some applications separate and apart from the remainder of the features. In the drawings Fig. 1 is a plan view of a device embodying th invention;

Fig. 2 is a side elevational view thereof;

Fig. 3 is a rear elevational view thereof;

Fig. 4 is a fragmentary sectional view taken along the line 4-4 of Fig. 1; and

Fig. 5 is a fragmentary sectional view taken A wing system comprising a plurality of propeller blades i8 is mounted on the nose section and projects laterally therefrom, and another wing system comprising a-plurality of propeller blades is mounted on the body section l4 and projects laterally therefrom. The tail section i6 is provided with oppositely extending, laterally projecting tail surfaces 22 and a rudder 24.

The fuselage I0 is hollow and means are ar- .the hub 34.

ranged inside thereof and. connected to the. nose section l2 and the body section 14 forrotating the same relative to each other so as to rotate the blades in oppositedirections in order to propel the craft in flight, such means comprising an elastic band or loop '26, one end of which is fastened to a crosspiece 28 in the rear end of the body section I4, and the other end of which is fasrtenedto the hook 30 on the end of theshaft 32 which is fastened to the nose section l2 so as to rotate therewith. l l i The shaft 32 may be embedded or otherwise secured in the hub 34 of the nose section on the axis of the fuselage. The shaft 32 extends through a central hole in the cap 36. which, de-

,definesa bearing for the shaft 32 The tension of the band 26 will maintain the nose section l2 operatively arranged relative to the main body section "as illustrated in the several figures of thedrawings. The nose section may include a rubber bumper 40 which encloses A spindle 42 is fixed in the end wall 44 of the main body section l4 and projects rearwardly therefrom so as to form a shaft on which the hub 46 of the tail section [6 is free to swivel or rotate relative to the body section l4. The tall surfaces 22 and the rudder 24 project radially from the hub 46. The tail 24 is weighted as indicated at 48 so as to maintain the laterally extending tail surfaces horizontal during flight of thecraft.

The rear edge of the ruuder may have a tab 50' thereon which may be arranged so as to project toward one side or the other of the rudder in order to make the craft fly in a circular path, if desired. This tab may consist of a flexible piece of sheet metal, such as aluminum, which may be readily deflected. The rear edges of the tail surfaces 22 may also be provided with tabs 52 similar to the tabs 50 which preferably are adjusted or set so as to neutralize any tendency of the tail section [5 to rotate about its own axis.

In order tofly the craft the elastic band or loop 26 must be wound, which may be effected by the energy stored in the elastic band turning the body section l4 relative to the nose section l2 in a direction opposite to that in which the sections must rotate in order to forwardly propel the craft. After this has been done the craft may be launched by casting it forwardly and upwardly with the craft headed forwardly and releasing the sections l2 and I4 so that the band 26 will be free to turn the same in opposite directions relative to each other.

As the nose and body sections 12 and H are free to turn relative to each other, and as the Wing systems l8 and 2|] are of the same size and arranged at substantially the same pitch, the wings l8 and 20 will turn opposite relative to each other at substantially the same speed about their own axis and will propel the craft in flight. The

tail section I2 being free to swivel on the spindle 42 will remain substantially as shown in Fig. 3 in horizontal flight and will enable the craft to fly in a substantially predetermined path until 26 is substan'tially expended. The parts of the craft are made from extremely light weight material so as to keep the over-all weight of the craft as low as possible.

While I have illustrated and described a preferred embodiment of my invention, it is understood that thisis capable of modification, and I therefore do not wish to be limited to the precise details set forth, but desire .to avail myself of such changes and alterations as fall within the purview-of the following claims.

' 'I claim:

-1. A flying toy heliplane comprising an elongated fuselage having a nose section, a main body section and a tail section arranged on a common axis, said nose and tail sections being arrangedto swivel on said axis relative to said of said wing systemscomprising a plurality of blades mounted on'said body section and projecting laterally therefrom, nie'a'ns arranged Within said fuselage and connected tos'aid nose and body sections and operable for rotating the same relative to each other so as to rotate said blades in opposite directions in order to propel said -hliplane in flight, said tail section having laterally and oppositely extending tail surfaces and a body section, a pair of oppositely rotatable wing systems, one of said Wing systems comprising a plurality of blades mounted on said nose section and projecting laterally therefrom and the other of said wing systems comprising a plurality of blades mounted on said body section and projecting laterally therefrom, means arranged for rotating said nose and body sections relative to each other so as to rotate said blades in opposite directions in order to propel said craft in flight, said tail section having laterally extending tail surfaces and a depending rudder which 'is constructed and arranged so as to maintain said laterally extending tail surfaces horizontal during flight.

3. A device according to claim 2 wherein said means for rotating said nose and body, sections relative to'each other comprises an elastic band disposed in said fuselage and connected to said body and nose sections. j a

4. Anaircraft comprising, an elongated fuselage having a nose section, a main body section and a. tail section arranged on 'a-common axis, said nose and tail sections being constructed and arranged so as to [be freely rotatable on said axis relative to said body section and to each other, a pair-of oppositely rotatable wing systems,'one of said wing systems comprising a plurality of bladesmounted onsaid nose section and projecting. laterally therefrom and the otherof said Wing systems comprising a plurality of blades 

